United States Green Building Council (USGBC)

Urban Green Council - USGBC NYC Local Chapter

Green Building Certificate Institute (GBCI)

LEED News

American Institute of Architects (AIA)

Building Green - LEED Credits

Environmental Building

U.S. Department of Energy (DOE)

New York State Energy Research and Development Authority (NYSERDA)

Energy Star

Illinois Smart Energy Design Assistance Center (SEDAC)

Chicago Sustainable Building Alliance (CSBA)

U.S. Environmental Protection Agency (EPA)